Fashion is as much a spectator sport as swimming or gymnastics, and at the London Games, all eyes were on one of its top performers, Catherine, Duchess of Cambridge. From the lilac Roksanda Ilincic shift dress she wore to an Olympic reception to the Smythe blazer she displayed on multiple outings, her winning style scored a perfect ten in our book. See our slideshow below for our favorite looks from the 2012 Summer Olympics.

See more photos at Vogue